We had a bad experience with an interior painter years ago, with the crux of the problem being him overcharging us at the end for "extra work" he didn't anticipate. One thing I'd strongly recommend is making sure it's in the contract that any additional work or growth work is estimated and communicated to the owner as soon as it is identified, otherwise the owner is not liable to pay it at the end.

Second: all the tricks of the trade in regard to "cheating" customers is for hustlers and cheaters and NOT established businesses. At the end of the project the job should come out looking professionally painted as specified in the contract. A selected color that takes multiple coats that was not calculated by the contractor should cost more money. It's not the fault of the painter.
In some cases, professional painters may include additional charges for specialized equipment that homeowners can't purchase on their own. Because professionals have licenses and access to such equipment, it's simpler to let them get those themselves. But providing some of the smaller equipment and extras directly really can help to cut down on the total cost of your project.
Interesting information! We just got scammed in White Stone, Virginia... we chose the same color, but went from a flat to an eggshell finish. I wasn't available to stand over the painter while he painted. For such a detailed job, I marveled at how quickly he finished the project! After he was paid for the job, we discovered all he did was roll paint across the walls and close to the crown, baseboards and detailed trim around windows and doors leaving about an inch or so of the flat finish. By using the same color, he didn't even do the job he was paid to do, which explained why he could finish the job so quickly. By using the same color... he got lucky and passed it off as a completed job not bothering to paint to and cut in around the trim. Upon further evaluation of our walls we could see exactly where he stopped because we could see the difference between the flat and eggshell finishes. There are walls he didn't even bother to paint. Then where he did paint near the crown when we were in the room watching ... he hit the crown moulding and tried to tell us it was already there... and tried to sell us on painting the crown moulding. I am so disgusted and upset!! He'll be hearing from us to rectify the situation.
Color World is a one-of-a-kind painting company, with a history of painting houses since 1997. We not only provide house painting services, we also offer commercial painting, power washing, gutter installation, holiday lighting, and minor drywall and carpentry work, plus much more. We are a truly unique operation, offering the services of five businesses in one. If you’re a homeowner looking for affordable painting and so much more, Color World can meet your needs. We have worked with several homes in your neighborhood and serve as your local, readily available contractors.
Historically, the painter was responsible for the mixing of the paint; keeping a ready supply of pigments, oils, thinners and driers. The painter would use his experience to determine a suitable mixture depending on the nature of the job. In modern times, the painter is primarily responsible for preparation of the surface to be painted, such as patching holes in drywall, using masking tape and other protection on surfaces not to be painted, applying the paint and then cleaning up.[2]
Joseba and María are a very special partner. They have marked the character of the house. He is a renowned painter (www.sanchezzabaleta.com) who comes from Basque country to Gaucin attracted by the position and the views of the city. He needed a place to work and looked for an architect who understood his ideas of the lights and the space. The work developed shared the client and the architect ideas
When we checked out their work the next day we found multiple, I mean MULTIPLE, paint splatters all over the place. On the hardwood floors (had to be at least 10 paint splatters on the ground), paint on the fireplace, clumps of paint on the wall. There were several areas that needed a paint touch up that weren't. It seemed like the whole job was done by a kid. We called them and asked if they could come back and basically finish their job. We told them we will mark all the paint splatters and areas missed with blue paint tape, so when they came back they would know exactly where to look. We marked probably about 20 areas that needed attention. Sounds flawless right?
I used this company back in around 2006-8, three different projects, interior work. Very professional, quality work and very clean. Never disappointed. What really stood out was the professionalism of this company, especially Ryan. Several years after the work was done, I needed to paint a large spot on my wall that was previously painted by Ryan's company. I couldn't find the paint color that was used. I contacted Ryan for the information, within less than an hour he sent me via email the exact paint used and it's color formula. Again, Ryan is the ultimate professional and provides the best customer service I've ever experienced. I used to do construction with my father as a teenager, I know quality work and I know and see when details are addressed in this companies workmanship. I hIghly recommend this company without any hesitation!
Second: all the tricks of the trade in regard to "cheating" customers is for hustlers and cheaters and NOT established businesses. At the end of the project the job should come out looking professionally painted as specified in the contract. A selected color that takes multiple coats that was not calculated by the contractor should cost more money. It's not the fault of the painter.
Repaint — exteriors especially — before visible signs of wear appear, Bancroft says. Don’t wait until you see peeling or flaking paint. “If I have to spend 40 hours preparing the surface before we can paint, that time is going to result in a lot of extra costs. But if I can spend 10 hours preparing the surfaces to be painted, you’re going to save money,” Freeman says.
Color is always the first consideration when painting a home. Most paint manufacturers offer samples to try that can allow you to make a more informed decision. Because light within a room may vary from wall to wall as well as from day to night, try painting a large piece of poster board in the color or colors you are considering. Move the board from wall to wall and look at it for a minimum of 24 hours at a time in each space to make sure you like the color before committing.
My son Owen and I thank you for the truly wonderful, informative and entertaining experience provided by the TOH staff, crew and trades-people at the Pro2Pro Brookline event. From Elizabeth - who welcomed us to the event, to Chris, Kevin and others who were wonderful during the orientation session (answering questions that I'm sure you have heard dozens of times before), to Charlie, Kevin, Richard, Heath (the electrician) and Thomas (the program director), you helped us Insiders to understand and appreciate the pride that you take in your work. It was refreshing. I loved the pictures and accompanying text of the event that you posted. I have to say in closing to Chris, Kevin and Thomas (in particular) you gave my son, a budding landscaper, the impetus to continue his pursuit of the trades. Kudos to you all and keep up your great work!

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I agree with JHs. If there is no new color on it at all, just talk to the painter about it, if it was an honest mistake (which can happen very easily while painting) your painter should have no problem fixing it. However, in my years of experience, it is not unusual for 2 coats of door paint (good quality) not to cover very well at all. I once painted a red door 7 times, plus a tinted prime coat before I found the door to be a solid color. Click Here Paint Contractor Denver, CO